JEE Main 2022 (Online) 25th June Morning Shift | Properties of Matter Question 61 | Physics

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JEE Main 2022 (Online) 25th June Morning Shift

MCQ (Single Correct Answer)

-1

The terminal velocity (v_t) of the spherical rain drop depends on the radius (r) of the spherical rain drop as :

r^1/2

r²

r³

JEE Main 2022 (Online) 24th June Morning Shift

MCQ (Single Correct Answer)

-1

The bulk modulus of a liquid is 3 $$\times$$ 10¹⁰ Nm^$$-$$2. The pressure required to reduce the volume of liquid by 2% is :

3 $$\times$$ 10⁸ Nm^$$-$$2

9 $$\times$$ 10⁸ Nm^$$-$$2

6 $$\times$$ 10⁸ Nm^$$-$$2

12 $$\times$$ 10⁸ Nm^$$-$$2

JEE Main 2021 (Online) 31st August Evening Shift

MCQ (Single Correct Answer)

-1

Four identical hollow cylindrical columns of mild steel support a big structure of mass 50 $$\times$$ 10³ kg. The inner and outer radii of each column are 50 cm and 100 cm respectively. Assuming uniform local distribution, calculate the compression strain of each column. [Use Y = 2.0 $$\times$$ 10¹¹ Pa, g = 9.8 m/s²]

3.60 $$\times$$ 10^$$-$$8

2.60 $$\times$$ 10^$$-$$7

1.87 $$\times$$ 10^$$-$$3

7.07 $$\times$$ 10^$$-$$4

JEE Main 2021 (Online) 31st August Evening Shift

MCQ (Single Correct Answer)

-1

A bob of mass 'm' suspended by a thread of length l undergoes simple harmonic oscillations with time period T. If the bob is immersed in a liquid that has density $${1 \over 4}$$ times that of the bob and the length of the thread is increased by 1/3^rd of the original length, then the time period of the simple harmonic oscillations will be :-

$${3 \over 2}$$T

$${3 \over 4}$$T

$${4 \over 3}$$T

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